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| Criterion |  Operations Gemba Walk |  Innovation Lean Startup |  Operations Root Cause Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Low | Medium | Medium | High |
Timedifferent | 30-120 min | Wochen bis Monate je Lernzyklus | 1-4 h | 2-6 h |
Participantsdifferent | 2-6 | 2-8 | 3-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Observation Notes, Improvement Ideas | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | LeanObservationProcessOperations | LeanStartupValidationMVP | Root causeProblem solvingQualityIncident | RiskQualityOperationsRoot cause |